Virgin Orbit announced launch system is in place at the Mojave Air and Space Port. The dress rehearsals are complete, and the company remains on track for its upcoming Straight Up launch, with a launch window opening on June 29 at 10 pm PDT. The launch will support the United States Space Force's STP-S28A mission and carry payloads for the Department of Defense (DOD) Space Test Program (STP).

The target orbit for Straight Up is approximately 500 km above the Earth's surface at a 45-degree inclination. Virgin Orbit is the first company to achieve this feat from California through its Above the Clouds launch which was completed earlier this year.